The simple response is this. If you take the meds and the things you feel change or go away it is obviously psychosis, if they are not touched the slightest bit then probably not. (maybe a higher dose would effect it)
Though not all psychosis is schizophrenia, if the illness IS schizophrenia, then there will be a set of physical symptoms such as fatigue/tiredness/lethargy/amotivation (or social withdrawal) . Schizophrenia (when the illness is active) is a physical illness that affects the whole body (the book Healing Schizophrenia goes over this). If you have absolutely no symptoms of flat affect, lack of ability to make eye contact, social withdrawal, multiple kinds of perceptual disturbances (not just one type) etc. then it likely isn't schizophrenia. Schizophrenia (when the illness is active) even has a distinct smell. It's like a musty old shoe odor that is also sort of sweet smelling. Do you feel like you smell funny or that you're emitting a weird sweat?
On the other hand, it could be another type of "unspecified" psychosis, but I doubt it. It is likely just a temporary side effect from the energy work. On the other hand, in my experience, if you have problems with psychosis/schizophrenia, then these kinds of meditative symptoms/side effects are usually amplified/exaggerated above and beyond the level of what most other people experience.